Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "This is a rather large update post rc1 due to the final steps of
  cleanups and API changes which had to wait for the preparatory patches
  to hit your tree.

   - Regression fixes for ARM GIC irqchips

   - Regression fixes and lockdep anotations for renesas irq chips

   - The leftovers of the cleanup and preparatory patches which have
     been ignored by maintainers

   - Final conversions of the newly merged users of obsolete APIs

   - Final removal of obsolete APIs

   - Final removal of ARM artifacts which had been introduced during the
     conversion of ARM to the generic interrupt code.

   - Final split of the irq_data into chip specific and common data to
     reflect the needs of hierarchical irq domains.

   - Treewide removal of the first argument of interrupt flow handlers,
     i.e. the irq number, which is not used by the majority of handlers
     and simple to retrieve from the other argument the irq descriptor.

   - A few comment updates and build warning fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
  arm64: Remove ununsed set_irq_flags
  ARM: Remove ununsed set_irq_flags
  sh: Kill off set_irq_flags usage
  irqchip: Kill off set_irq_flags usage
  gpu/drm: Kill off set_irq_flags usage
  genirq: Remove irq argument from irq flow handlers
  genirq: Move field 'msi_desc' from irq_data into irq_common_data
  genirq: Move field 'affinity' from irq_data into irq_common_data
  genirq: Move field 'handler_data' from irq_data into irq_common_data
  genirq: Move field 'node' from irq_data into irq_common_data
  irqchip/gic-v3: Use IRQD_FORWARDED_TO_VCPU flag
  irqchip/gic: Use IRQD_FORWARDED_TO_VCPU flag
  genirq: Provide IRQD_FORWARDED_TO_VCPU status flag
  genirq: Simplify irq_data_to_desc()
  genirq: Remove __irq_set_handler_locked()
  pinctrl/pistachio: Use irq_set_handler_locked
  gpio: vf610: Use irq_set_handler_locked
  powerpc/mpc8xx: Use irq_set_handler_locked()
  powerpc/ipic: Use irq_set_handler_locked()
  powerpc/cpm2: Use irq_set_handler_locked()
  ...

4 files changed, 10 insertions, 17 deletions

diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 1bbd0fe2c806..836d11b92811 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -489,10 +489,8 @@ static int apic_set_affinity(struct irq_data *irq_data,
 
 	err = assign_irq_vector(irq, data, dest);
 	if (err) {
-		struct irq_data *top = irq_get_irq_data(irq);
-
 		if (assign_irq_vector(irq, data,
-				      irq_data_get_affinity_mask(top)))
+				      irq_data_get_affinity_mask(irq_data)))
 			pr_err("Failed to recover vector for irq %d\n", irq);
 		return err;
 	}
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index c80cf6699678..38da8f29a9c8 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -68,11 +68,10 @@ static inline void *current_stack(void)
 	return (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1));
 }
 
-static inline int
-execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 {
 	struct irq_stack *curstk, *irqstk;
-	u32 *isp, *prev_esp, arg1, arg2;
+	u32 *isp, *prev_esp, arg1;
 
 	curstk = (struct irq_stack *) current_stack();
 	irqstk = __this_cpu_read(hardirq_stack);
@@ -98,8 +97,8 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
 	asm volatile("xchgl	%%ebx,%%esp	\n"
 		     "call	*%%edi		\n"
 		     "movl	%%ebx,%%esp	\n"
-		     : "=a" (arg1), "=d" (arg2), "=b" (isp)
-		     :  "0" (irq),   "1" (desc),  "2" (isp),
+		     : "=a" (arg1), "=b" (isp)
+		     :  "0" (desc),   "1" (isp),
 			"D" (desc->handle_irq)
 		     : "memory", "cc", "ecx");
 	return 1;
@@ -150,19 +149,15 @@ void do_softirq_own_stack(void)
 
 bool handle_irq(struct irq_desc *desc, struct pt_regs *regs)
 {
-	unsigned int irq;
-	int overflow;
-
-	overflow = check_stack_overflow();
+	int overflow = check_stack_overflow();
 
 	if (IS_ERR_OR_NULL(desc))
 		return false;
 
-	irq = irq_desc_get_irq(desc);
-	if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
+	if (user_mode(regs) || !execute_on_irq_stack(overflow, desc)) {
 		if (unlikely(overflow))
 			print_stack_overflow();
-		generic_handle_irq_desc(irq, desc);
+		generic_handle_irq_desc(desc);
 	}
 
 	return true;
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index ff16ccb918f2..c767cf2bc80a 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -75,6 +75,6 @@ bool handle_irq(struct irq_desc *desc, struct pt_regs *regs)
 	if (unlikely(IS_ERR_OR_NULL(desc)))
 		return false;
 
-	generic_handle_irq_desc(irq_desc_get_irq(desc), desc);
+	generic_handle_irq_desc(desc);
 	return true;
 }
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 161804de124a..a0d09f6c6533 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1015,7 +1015,7 @@ static struct clock_event_device lguest_clockevent = {
  * This is the Guest timer interrupt handler (hardware interrupt 0).  We just
  * call the clockevent infrastructure and it does whatever needs doing.
  */
-static void lguest_time_irq(unsigned int irq, struct irq_desc *desc)
+static void lguest_time_irq(struct irq_desc *desc)
 {
 	unsigned long flags;